class QPhongAlphaMaterial

The QPhongAlphaMaterial class provides a default implementation of the phong lighting effect with alpha. More…

Synopsis

Properties

• alphaᅟ

• ambientᅟ

• blendFunctionArgᅟ

• destinationAlphaArgᅟ

• destinationRgbArgᅟ

• diffuseᅟ

• shininessᅟ

• sourceAlphaArgᅟ

• sourceRgbArgᅟ

• specularᅟ

Methods

• def __init__()

• def alpha()

• def ambient()

• def blendFunctionArg()

• def destinationAlphaArg()

• def destinationRgbArg()

• def diffuse()

• def shininess()

• def sourceAlphaArg()

• def sourceRgbArg()

• def specular()

Slots

• def setAlpha()

• def setAmbient()

• def setBlendFunctionArg()

• def setDestinationAlphaArg()

• def setDestinationRgbArg()

• def setDiffuse()

• def setShininess()

• def setSourceAlphaArg()

• def setSourceRgbArg()

• def setSpecular()

Signals

• def alphaChanged()

• def ambientChanged()

• def blendFunctionArgChanged()

• def destinationAlphaArgChanged()

• def destinationRgbArgChanged()

• def diffuseChanged()

• def shininessChanged()

• def sourceAlphaArgChanged()

• def sourceRgbArgChanged()

• def specularChanged()

Note

This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE

Detailed Description

This class is deprecated; use QDiffuseSpecularMaterial instead.

The phong lighting effect is based on the combination of 3 lighting components ambient, diffuse and specular. The relative strengths of these components are controlled by means of their reflectivity coefficients which are modelled as RGB triplets:

• Ambient is the color that is emitted by an object without any other light source.

• Diffuse is the color that is emitted for rought surface reflections with the lights.

• Specular is the color emitted for shiny surface reflections with the lights.

• The shininess of a surface is controlled by a float property.

• Alpha is the transparency of the surface between 0 (fully transparent) and 1 (opaque).

This material uses an effect with a single render pass approach and performs per fragment lighting. Techniques are provided for OpenGL 2, OpenGL 3 or above as well as OpenGL ES 2.

Note

Properties can be used directly when from __feature__ import true_property is used or via accessor functions otherwise.

property alphaᅟ: float

Holds the alpha component of the object which varies between 0 and 1.

The default value is 0.5f.

Access functions:

• alpha()

• setAlpha()

• Signal alphaChanged()

property ambientᅟ: QColor

Holds the ambient color.

Access functions:

• ambient()

• setAmbient()

• Signal ambientChanged()

property blendFunctionArgᅟ: Qt3DRender.QBlendEquation.BlendFunction

Holds the blend equation function argument.

See also

BlendFunction

Access functions:

• blendFunctionArg()

• setBlendFunctionArg()

• Signal blendFunctionArgChanged()

property destinationAlphaArgᅟ: Qt3DRender.QBlendEquationArguments.Blending

Holds the blend equation destination alpha blending argument.

See also

Blending

Access functions:

• destinationAlphaArg()

• setDestinationAlphaArg()

• Signal destinationAlphaArgChanged()

property destinationRgbArgᅟ: Qt3DRender.QBlendEquationArguments.Blending

Holds the blend equation destination RGB blending argument.

See also

Blending

Access functions:

• destinationRgbArg()

• setDestinationRgbArg()

• Signal destinationRgbArgChanged()

property diffuseᅟ: QColor

Holds the diffuse color.

Access functions:

• diffuse()

• setDiffuse()

• Signal diffuseChanged()

property shininessᅟ: float

Holds the shininess exponent.

Access functions:

• shininess()

• setShininess()

• Signal shininessChanged()

property sourceAlphaArgᅟ: Qt3DRender.QBlendEquationArguments.Blending

Holds the blend equation source alpha blending argument.

See also

Blending

Access functions:

• sourceAlphaArg()

• setSourceAlphaArg()

• Signal sourceAlphaArgChanged()

property sourceRgbArgᅟ: Qt3DRender.QBlendEquationArguments.Blending

Holds the blend equation source RGB blending argument.

See also

Blending

Access functions:

• sourceRgbArg()

• setSourceRgbArg()

• Signal sourceRgbArgChanged()

property specularᅟ: QColor

Holds the specular color.

Access functions:

• specular()

• setSpecular()

• Signal specularChanged()

__init__([parent=None])

Parameters:

parent – QNode

Constructs a new QPhongAlphaMaterial instance with parent object parent.

alpha()

Return type:

float

See also

setAlpha()

Getter of property alphaᅟ .

alphaChanged(alpha)

Parameters:

alpha – float

Notification signal of property alphaᅟ .

ambient()

Return type:

QColor

See also

setAmbient()

Getter of property ambientᅟ .

ambientChanged(ambient)

Parameters:

ambient – QColor

Notification signal of property ambientᅟ .

blendFunctionArg()

Return type:

BlendFunction

See also

setBlendFunctionArg()

Getter of property blendFunctionArgᅟ .

blendFunctionArgChanged(blendFunctionArg)

Parameters:

blendFunctionArg – BlendFunction

Notification signal of property blendFunctionArgᅟ .

destinationAlphaArg()

Return type:

Blending

See also

setDestinationAlphaArg()

Getter of property destinationAlphaArgᅟ .

destinationAlphaArgChanged(destinationAlphaArg)

Parameters:

destinationAlphaArg – Blending

Notification signal of property destinationAlphaArgᅟ .

destinationRgbArg()

Return type:

Blending

See also

setDestinationRgbArg()

Getter of property destinationRgbArgᅟ .

destinationRgbArgChanged(destinationRgbArg)

Parameters:

destinationRgbArg – Blending

Notification signal of property destinationRgbArgᅟ .

diffuse()

Return type:

QColor

See also

setDiffuse()

Getter of property diffuseᅟ .

diffuseChanged(diffuse)

Parameters:

diffuse – QColor

Notification signal of property diffuseᅟ .

setAlpha(alpha)

Parameters:

alpha – float

See also

alpha()

Setter of property alphaᅟ .

setAmbient(ambient)

Parameters:

ambient – QColor

See also

ambient()

Setter of property ambientᅟ .

setBlendFunctionArg(blendFunctionArg)

Parameters:

blendFunctionArg – BlendFunction

See also

blendFunctionArg()

Setter of property blendFunctionArgᅟ .

setDestinationAlphaArg(destinationAlphaArg)

Parameters:

destinationAlphaArg – Blending

See also

destinationAlphaArg()

Setter of property destinationAlphaArgᅟ .

setDestinationRgbArg(destinationRgbArg)

Parameters:

destinationRgbArg – Blending

See also

destinationRgbArg()

Setter of property destinationRgbArgᅟ .

setDiffuse(diffuse)

Parameters:

diffuse – QColor

See also

diffuse()

Setter of property diffuseᅟ .

setShininess(shininess)

Parameters:

shininess – float

See also

shininess()

Setter of property shininessᅟ .

setSourceAlphaArg(sourceAlphaArg)

Parameters:

sourceAlphaArg – Blending

See also

sourceAlphaArg()

Setter of property sourceAlphaArgᅟ .

setSourceRgbArg(sourceRgbArg)

Parameters:

sourceRgbArg – Blending

See also

sourceRgbArg()

Setter of property sourceRgbArgᅟ .

setSpecular(specular)

Parameters:

specular – QColor

See also

specular()

Setter of property specularᅟ .

shininess()

Return type:

float

See also

setShininess()

Getter of property shininessᅟ .

shininessChanged(shininess)

Parameters:

shininess – float

Notification signal of property shininessᅟ .

sourceAlphaArg()

Return type:

Blending

See also

setSourceAlphaArg()

Getter of property sourceAlphaArgᅟ .

sourceAlphaArgChanged(sourceAlphaArg)

Parameters:

sourceAlphaArg – Blending

Notification signal of property sourceAlphaArgᅟ .

sourceRgbArg()

Return type:

Blending

See also

setSourceRgbArg()

Getter of property sourceRgbArgᅟ .

sourceRgbArgChanged(sourceRgbArg)

Parameters:

sourceRgbArg – Blending

Notification signal of property sourceRgbArgᅟ .

specular()

Return type:

QColor

See also

setSpecular()

Getter of property specularᅟ .

specularChanged(specular)

Parameters:

specular – QColor

Notification signal of property specularᅟ .